Crusher and pulverizer.



M. F. WILLIAMEL CRUSHER AND ZULVERIZEB, APPLIUATION rum) 00121, 1910.

Patented Mar. 12, 1912.

immim a 2 SHEETS-SHEET 1.

/N YENTOR 5 M m f M N m; H.

M IV 7 no. G

M. F. WILLIAMS.

GRUSHEB m1) PULVEBIZER 2 SHEETS SHEBT 2.

TLY

Patented Mar. 12, 1912.

work and casing 18 and 19 are three shafts 30, 31 and 32 upon which are fixed three gears 33, 34 and 35 adapted to engage with Connected to the o posite sides of certain of the links is a brac ct 39 having a flange 40 to which is riveted at .41 an angle' piece 44. This angle piece extends from one chain 36 to a similar chain 36 on the opposite side of the machine.

As shown in Fig. 1 the chains 36 and 36 are made loose enough so that the angle pieces 44 may bear against the exterior of the cage 13 as they pass from the shaft 30 at the bottom and one side of the top piece 18 to the shaft 32 on oppositeside of the easdn order that the tension of the chains may be adjusted I provide suitable adjustable brackets for shaft 32 being comprised of bearings 42 attached to adjustable side pieces 45, having slots 46 engaged with bolts 47, projecting from the casing 19. Itis obvious that the bracket 45 maybeshifted with the shaft 32 and the bolts 47 clamped to hold the same in a position to retain the chains 36, 36 in a taut condition. The shaft 30 is connected with the shaft 20 by means of a belt drive 48.

The detector bar or piece 11 consists of a body portion having a lip shaped to fit the end 10 of the cast piece 8. On the o posits side from this lip or projection are lips 50 formed very thin to be easily broken. Such lips are shown in Fig. 2

projecting from either end of the bar 11. A hook-shaped member 51 is cast solid with the bar 11 substantially at the center thereof. Pivoted on rod 52 is a-weighted arm 53, and attached also on the pivot rod 52 is the lever crushed and then passes onto the perforated surface 12 where it gradually passes through the openings between the bars 13, if pro erly crushed, and is delivered, if desired to a proper receptacle within the casing 17. If however, it is carried up so as to be forced out through the openings between the bars at the upper portion of the cage 2 it is engaged.

by the continuous conveyer formed by the angle pieces 44'and removed from the outside of the cage and carried around to be de livered at one side of the casing 17. The dust deflector 14 is provided so that in the toward the center ofthe hammers by t-ion.

rotation of the hammers as the'dnst is forced up into the chamber 15, it is-then deflectid' t 61". wall 16 and drawn by-snctionin that In the form of hammer the oint oi the head engages the materialgila'nd t a head;

is driven in a direction sutietantially" the-P, same as the curved shank and longitudinally thereof so that there is little or no stress on the fastening means of the head to the shank] and most of the stress is int direction lone gitudinal to the shank, which latter member is shaped to resist it. g

If a drill point or metal piece of any de -BL scription is accidentally fed to the machine it will drop into the opening 9 and will a strike against the detector 11 and break the I lugs or lips 50. This will cause the plate 11 to fall in the space 9, being drawn by the weighted chain, permitting the weight to drop, which instantly calls the attention of the attendant to the presence ofioreign material in the cage. A door 56 is provided in the casing 17 opposite the openings 9 so that the broken detector bar 11 and the foreign substance may be removedarild a new detector bar placed in position.

I am aware that minor changes may be made in the construction, arrangement and combination of the various parts of my device without departing from the spirit of my invention the scope 0 which is indicated in the accompanying claims.

I claim 1 1 1. In a device of the character described, in combination, a cage having an opening i 'in one wall, a series of hammers rotatably mounted in said cage, and a detector platehaving a fran ible portion fitted within said opening. p I 2. In a device of the character described, in combination, a cage having an opening.v in one wall, a series of hammers rotatablyi" mounted in said cage, and a detector 1816. 9 having frangible lips engaging one si e of the wall of the opening, said plate being fitted within the opening. 3. In a device of the character described} in combination, a cage having an opening in 5 one wall, a series of hammers rotatably mounted in said cage, and a detector plate having oppositely positioned lips engaging one side of the wall of the opening.

4. In a device of the character described,

cage provided with a pocket, a frangible plate forming one of the walls of said pocket and yieldable means for normallyv holding said frangible plate, in position.

6. In a machine of the class described, a grindingcage having a pocket-formed at its lowermost side, a'frangible plate arranged in said pocket, an arm pivoted on the exterior of the machine and connections between the frangible plate and said arm.

7 In a device of the character described, in combination, a cage, rotatable hammers, a breakable detector bar mounted in the cage and means for normally holding said de tector bar in position said means comprising a weighted element.

8. In adevice of the character described, in combination, a cage provlded with perforated and imperforated grinding surfaces,

said surfaces being disconnected, a cast piece forming a recess between said grmdmg surfaces, and a detector bar normally held in position on said cast piece. p

9. In a device'of the character described, in combination, a cage, rotatable arms mounted within the cage, a detector bar having a breakable portion normally held in position in. an opening in the wall of the cage, means for holding said detector bar in and a head portion slotted to en position, comprising a weighted arm, and a chain connecting said weighted arm with the detector bar.

10. In a device of the character described, cage having a series of rotating hammers mounted therein, each vhammercomprising a twisted shank portion having acurved end gage the curved end' of the shank, said head portion being curved in the direction of rotation of the hammers.

described, pocket, a fixed plate said pocket, at frangi- 11. In a machine of the class a cage provided with a forming the bottom of ble plate positioned between the first mentioned plate and the cage, which frangible plate forms one of the walls of thepocket, an arm pivotally arranged on the exterior of the machine and frangible plate and said arm.

In testimony whereof I hereunto afiix my signature in the resence of two witnesses, this 14th day of geptember, 1910.

MILTON F. WILLIAMS.

Witnesses:

M. P. SMITH, B. L. CROWLEY.

a connection between the 

